This volume contains the proceedings of the International Winter School on "Heterostructures and Two-Dimensional Electronic Systems in Semiconductors". The school took place in Mauterndorf, Austria, from February 26 - March 2, 1984, and was the third one in a series of winter schools on "New Develop ments in Solid-State Physics", organized by the Austrian Physical Society, Solid State Physics Division. The school was attended by about 150 scientists from 12 countries, including the United States of America, Japan and Poland. Most of the research groups of Western Europe working in this field participated and demonstrated the still increasing interest in the topics. These topics cover the wide area ranging from fundamental phenomena in solid-state physics, like the quantum Hall effect, to new semiconductor devices, all based on two-dimensional elec tronic systems. We hope that the spirit of this school, the combination of basic and applied physics (including skiing) will stimulate further progress in this field of research. This conference was sponsored by the Austrian Physical Society, Austrian Federal Ministry for Science and Research, European Research Office of the US Army, European Office of Aerospace Research and Development, Federal Province of Salzburg, and Osterreichische Forschungsgemeinschaft Further financial support came from the following companies: Balzers, IBM Austria, Messer-Griesheim, Oxford Instruments, Klaus Schafer & Co., Siemens Osterreich and Varian.

Inhalt
I Physics of Heterostructures and Inversion Layers.- Electric and Magnetic Quantisation of Two-Dimensional Systems Elementary Theory.- The Effects of a Quantizing Magnetic Field.- Subband Physics for the Narrow-Gap Semiconductor Hg1-xCdxTe.- Infrared Spectroscopy of Electronic Excitations in MOS Structures.- Self-Consistent Calculations of Subbands in p-Type Semiconductor Inversion Layers.- Interaction of a Two-Dimensional Electron Gas with Ionized Impurities and Polar Optical Phonons in High Magnetic Fields.- FIR Investigations of GaAs/GaAlAs Heterostructures.- The Magnetophonon Effect in Two-Dimensional Systems.- Thermodynamics of Two-Dimensional Electron Gas in a Magnetic Field.- II Growth and Devices.- Molecular Beam Epitaxy of GaAs and AlGaAs for Optoelectronic Devices and Modulation Doped Heterostructures.- MOCVD Growth for Heterostructures and Two-Dimensional Electronic Systems.- MOCVD Growth of GaAlAs/GaAs Heterostructures for Optoelectronic Devices.- Field-Effect Transistors with a Two-Dimensional Electron Gas as Channel.- Advantages of Multiple Quantum Wells with Abrupt Interfaces for Light-Emitting Devices.- MBE A Tool for Fabricating IVVI Compound Diode Lasers.- Hot-Wall Epitaxy of IVVI Compounds.- III Multi Quantum Wells and Superlattices.- Selected Topics in Semiconductor Quantum Wells.- Subband Structure and Landau Levels in Heterostructures.- Combined Electric and Magnetic Field Effects in Semiconductor Heterostructures.- Strained-Layer Superlattices.- Electronic Properties of HgTe-CdTe Superlattices.- Strained Layer IV-VI Semiconductor Superlattices.- IV Doping Superlattices.- Preparation and Characterization of GaAs Doping Superlattices.- Luminescence and Inelastic Light Scattering in GaAs Doping Superlattices.- V Quantum Hall Effect.-The Quantum Hall Effect.- Two-Dimensional Electron Transport Under Hydrostatic Pressure.- Fractional Quantization of the Hall Effect.- The Gauge Argument for Accurate Quantization of the Hall Conductance.- Fractional Quantization of the Hall Effect.- Quantum Hall Effect-Questions and Answers.- Index of Contributors.